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-#
-# $Id$
-#
-
-BSP NAME: helas403
-BOARD: IMD, helas-ppc
-BUS: N/A
-CPU FAMILY: ppc
-CPU: PowerPC 403GA
-COPROCESSORS: N/A
-MODE: 32 bit mode
-
-DEBUG MONITOR: Modified Motorola FBUG
-
-PERIPHERALS
-===========
-TIMERS: 403GA internal
- RESOLUTION: .04 microseconds
-SERIAL PORTS: 403GA internal
-REAL-TIME CLOCK: 403GA internal
-DMA: 403GA internal
-VIDEO: none
-SCSI: none
-NETWORKING: none
-
-DRIVER INFORMATION
-==================
-CLOCK DRIVER: 403GA internal
-IOSUPP DRIVER: N/A
-SHMSUPP: N/A
-TIMER DRIVER: 403GA internal
-TTY DRIVER: 403GA internal
-
-STDIO
-=====
-PORT: Console port 0
-ELECTRICAL: RS-232
-BAUD: 9600
-BITS PER CHARACTER: 8
-PARITY: None
-STOP BITS: 1
-
-Notes
-=====
-
-Board description
------------------
-clock rate: 25 MHz
-bus width: 8-bit PROM, 32-bit DRAM
-ROM: Up to 512KByte (Am29F040), 90 nsec chip select 0
-RAM: 4 to 32 MByte DRAM SIMM (autodetect), 70 nsec,
- no parity, at CS7 or CS6+CS7 (for two-bank-SIMMs)
-
-
-helas403 only supports single processor operations.
-
-Porting
--------
-This board support package is written for a typical PPC403GA
-system. The rough features of this board are described above.
-
-This BSP contains files for two startup methods:
-- Direct start from Flash after powerup (with code run out of flash):
- This is the default configuration, it uses the files
- flashentry/flashentry.s
- startup/linkcmds
-
- Please note, that this configuration is good to startup the system,
-but it will not gain maximum performance due to slow Flash access (8
-bit wide only)
-
-- Start after software download into DRAM:
- This configuration will use:
- dlentry/dlentry.s
- startup/linkcmds.dl
-
-If you want to use the download configuration, it is sufficient to
-rename the file "startup/linkcmds.dl" to "startup/linkcmds", it will
-automatically reference the dlentry.s as entry code. (Renaming is not
-quite elegant, a more sophisticated solution will follow in future,
-any hints welcome ;-)
-
-For adapting this BSP to other boards, the following files should be
-modified:
-
-- c/src/lib/libbsp/powerpc/helas403/flashentry/flashentry.s
- for the memory controller configuration and other basic stuff
-
-- c/src/lib/libbsp/powerpc/helas403/startup/linkcmds[.dl]
- for the memory layout required
-
-- c/src/lib/libbsp/powerpc/helas403/startup/bspstart.c
- Here you can select the clock source for the timers and the serial
- interface (system clock or external clock pin), the clock rates,
- initial baud rate and other stuff
-
-- c/src/lib/libbsp/powerpc/helas403/include/bsp.h
- some BSP-related constants
-
-The actual drivers are placed in
-- c/src/lib/libcpu/powerpc/ppc403/*
- well, they should be generic, so there _should_ be no reason
- to mess around there (but who knows...)
-
-